If you're a Creator or Co-Creator of a Story, you can edit the Story's name and change its cover photo.
- Enter Edit Mode (tap the Edit icon top right).
- Tap the edit icon (middle for Android/Desktop; top right for iOS)
- Tap into any of the fields in the pop-up window
- On Android and Desktop, you can also add a Tag in this window
Note: You can also get to this window by tapping Story Options (the 3 dots in the top right corner of any Story's Cover page), then tapping the Date or the Cover field.